期刊
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
卷 66, 期 9, 页码 4246-4251出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAC.2020.3027646
关键词
Linear parameter-varying systems; set-membership estimation; unknown input observer
资金
- National Natural Science Foundation of China [61973098, 61773145]
- National Key R&D Program of China [2019YFC0117400]
This article presents a novel unknown input observer design for linear parameter-varying systems in a bounded error context. By integrating decoupling technique and set-membership approach, a compromise is achieved between the restrictiveness and the conservativeness of estimation. Numerical simulations demonstrate the validity of the presented method in a vehicle lateral dynamics system.
This article studies unknown input observer design for linear parameter-varying systems in a bounded error context. By presenting a novel unknown input observer structure, the output equation of linear parameter-varying systems is not restricted to be in a linear form. Moreover, by integrating decoupling technique and set-membership approach, a compromise is achieved between the restrictiveness and the conservativeness of estimation. Based on P-radius criteria, sufficient design conditions are derived in terms of linear matrix inequalities. Finally, numerical simulations of a vehicle lateral dynamics system are conducted to demonstrate the validity of the presented method.
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